Add beer post, brewery post GET service and page

Add prettier, eslint config

services/BeerPost/getBeerPostById.ts

@@ -0,0 +1,33 @@
+import DBClient from '@/prisma/client';
+import BeerPostQueryResult from './types/BeerPostQueryResult';
+
+const prisma = DBClient.instance;
+
+const getBeerPostById = async (id: string) => {
+  const beerPost: BeerPostQueryResult | null = await prisma.beerPost.findFirst({
+    select: {
+      id: true,
+      name: true,
+      brewery: {
+        select: {
+          name: true,
+          id: true,
+        },
+      },
+      postedBy: {
+        select: {
+          firstName: true,
+          lastName: true,
+          id: true,
+        },
+      },
+    },
+    where: {
+      id,
+    },
+  });
+
+  return beerPost;
+};
+
+export default getBeerPostById;